Commonwealth of Australia, watermarked papers for an intended issue of £1 and £5 of 1936, featuring a portrait of King Edward VIII, who abdicated in the same year, glued into black card frames, ink annotations on frames and paper, as produced, extremely rare, and the only trace of this fabled Edward VIII issue that is likely to ever be obtainable by collectors (2 papers)
BNB B129, the £5 not listed, Pick not listed £200-£260

These items are directly from the Portals Paper Archive